RDMA/bng_re: return a timeout when firmware responses stall

__wait_for_resp() documents that it returns a non-zero error when a
firmware command does not complete, and bng_re_rcfw_send_message() already
marks the firmware as stalled when the helper returns -ENODEV.

However, the helper ignores wait_event_timeout() expiry.  If the response
slot remains in use after the timeout and after the polled CREQ service
attempt, the loop starts another full timeout period and can repeat
forever.

Return -ENODEV after a timed out wait that still has no response.  The
existing caller then marks FIRMWARE_STALL_DETECTED and returns
-ETIMEDOUT to the command issuer.

Fixes: 53c6ee7d7f68 ("RDMA/bng_re: Enable Firmware channel and query device attributes")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://patch.msgid.link/20260625003614.27515-1-pengpeng@iscas.ac.cn
Reviewed-by: Siva Reddy Kallam <siva.kallam@broadcom.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

0 files changed, 0 insertions, 0 deletions